Joseph g



(No Model.)

J. G. MOOMY.

BELT PULLEY.

No. 391,180. Patented Oct. 16,1888.

NITED STATES PATENT Fries.

JOSEPH G. MOOMY, OF ERIE, PENNSYLVANIA, ASSIGNOR TO THE TAPER SLEEVEPULLEY WORKS, OF SAME PLACE.

BELT- PU LLE Y.

SPECIFICATION forming part of Letters Patent No. 391,180, dated October16, 1888.

Serial No. 277,996.

No model.)

To aZZ whom it may concern.-

Be it known that L J ossrn G. MooMY, a citizen of the United States,residing at Erie, in the county of Erie and State of Penusylva nia, haveinvented certain new and useful Improvements in Belt-Pulleys; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to beltpulleys; and it consists in certainimprovements in the means for fastening the same upon the shaft.

My device is applicable to either separable or non-separable pulleys;but it is intended for use chiefly on separable pulleys, and I haveillustrated it in the accompanying drawings as applied to such a pulley.

The accompanying drawings illustrate my invention, as follows:

Figure l is a side elevation of a wooden separable pulley having myinvention thereon. Fig. 2 is a perspective view of one of the parts Bshown in Fig. 1. Fig. 3 is a view like Fig. 1, showing an alternativeconstruction.

1 A A are the two halves of the separable pul- A A are flanges on thetwo halves A, which form the hub of the pulley when the two parts areput together.

a a a a are insets in the hub, which form seats for the heads and nutsof the bindingbolts 0.

a a mark a gore-shapcd space between the parts of the pulley, the web ofeach part being slightly cut away toward the center, so as to have thetwo parts seated upon each other at the rim only. The object of this isto insure a perfect seating at the rim in all cases. The gore-shapedspace may be very narrow, the drawings, in fact, showing it more pronounced than it need be in actual use. The hole through the hub is muchlarger than the shaft, and bushing-pieces B are used to fill the extraspace. These bushing-pieces constitute the essential feature of myinvention. Fig. 2 shows one of them detached from the pulley. Each pieceB has two faces, I) and b, which may bear on the shaft, and four faces,I) I) and I) b, which may bear on the wall of the opening through thehub.

In Fig. 1 the bushing-pieces B are so arranged that the shaft-bearingfaces I) b are in place to receive the shaft and the hub-bearing facesI) I) are in position to bear upon the wall of the hub opening. Now itwill be seen that these pieces B may be removed and turned over and putin again. \Vhen this is done, the shaftbearing faces I) b will be towardthe center and the hub-bearing faces b b will be next to the wall of thehub-opening. It will also be observed that the circular faces b b and bI) are formed on different length radii, so that when the bushing-piecesB are arranged in one way the pulley will receive onesized shaft andwhen arranged the other way the pulley will receive a larger shaft. Thebushing-pieces B have notches c, as shown in Fig. 2, so as to allow thebolts 0 to pass through the hub, as seen in Fig. 1, and when the boltsare in place the bushing-pieces B cannot drop out. The bushingpieces aretherefore reversible and adapted to accommodate two different sizes ofshafting.

In Fig. 3 a modification is shown. Here the opening through the hub ofthe pulley is square, and there are four bushing-pieces D, each of whichhas three curved faces, 1, 2, and 3, and they might have four, ifdesired. These bushing-pieces are removable the same as the ones shownin Figs. 1 and 2, and they are reversible, and by changing themproperly, as can easily be seen, they will accommodate three differentsizes of shafting.

The bolts 0 clamp the two parts of the pulley together and bind thebushings upon the shaft.

\Vhat I claim as new is 1. In a belt-pulley, the combination of a hubhaving a central opening larger than the shaft and two or more removableand reversible bushingpieces fitting in said opening, each of whichpieces is provided with two or more shaft-bearing faces of differentradii, substantially as and for the purposes set forth.

2. In a separable belt-pulley, the combination of a hub formed by theflanges A, which hub has a central opening larger than the shaft, andsaid flanges having bolt-seats a, In testimony whereoflaffix mysignature in bolts 0, passing through said flanges at right presence oftwo witnesses. angles to the line of separation of the two parts 0f thepulley, and two or more reversible bnsh- JOSEPH MOOMY' 5ing-pieces'having two or more shaftbearing Witnesses:

faces removably adjusted in said central open- JNOVK. HALLOCK, ing. M.DEWALL.

